diff options
| author | Hal Feng <hal.feng@starfivetech.com> | 2023-03-28 10:09:02 +0300 |
|---|---|---|
| committer | Hal Feng <hal.feng@starfivetech.com> | 2023-03-28 12:44:50 +0300 |
| commit | e403bfb4a219d037d0b308320331c7625b10caf1 (patch) | |
| tree | fecbaa181e0af104a84423022cf47dcc87a00bac /drivers | |
| parent | bf37dcc53806f21f1e64912d5dfd00b99cb8d105 (diff) | |
| download | u-boot-e403bfb4a219d037d0b308320331c7625b10caf1.tar.xz | |
pinctrl: starfive: Add .get_function ops for the gpio driver
Support getting direction of gpio.
Signed-off-by: Hal Feng <hal.feng@starfivetech.com>
Diffstat (limited to 'drivers')
| -rwxr-xr-x | drivers/pinctrl/starfive/pinctrl-starfive.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/pinctrl/starfive/pinctrl-starfive.c b/drivers/pinctrl/starfive/pinctrl-starfive.c index fc72699a2c..990d7ac526 100755 --- a/drivers/pinctrl/starfive/pinctrl-starfive.c +++ b/drivers/pinctrl/starfive/pinctrl-starfive.c @@ -275,6 +275,21 @@ const struct pinctrl_ops starfive_pinctrl_ops = { .pinconf_set = starfive_pinconf_set, }; +static int starfive_gpio_get_direction(struct udevice *dev, unsigned int off) +{ + struct udevice *pdev = dev->parent; + struct starfive_pinctrl_priv *priv = dev_get_priv(pdev); + struct starfive_pinctrl_soc_info *info = priv->info; + + unsigned int offset = 4 * (off / 4); + unsigned int shift = 8 * (off % 4); + u32 doen = readl(priv->base + info->doen_reg_base + offset); + + doen = (doen >> shift) & info->doen_mask; + + return doen == GPOEN_ENABLE ? GPIOF_OUTPUT : GPIOF_INPUT; +} + static int starfive_gpio_direction_input(struct udevice *dev, unsigned int off) { struct udevice *pdev = dev->parent; @@ -365,6 +380,7 @@ static int starfive_gpio_probe(struct udevice *dev) } static const struct dm_gpio_ops starfive_gpio_ops = { + .get_function = starfive_gpio_get_direction, .direction_input = starfive_gpio_direction_input, .direction_output = starfive_gpio_direction_output, .get_value = starfive_gpio_get_value, |